I watched IAE go up to 18.97 today but can't understand just why. The stock goes "X" tomorrow but to pay an 8% premium to NAV in order to buy a dividend makes no sense to me. I expect the price will bo down more than the dividend within a few days, perhaps as soon as tomorrow.

Why? At a substantial premium to NAV and being X the dividend makes the stock a lot less attractive than it was just a few days ago. I guess we'll just have to wait and see.